The Indian MPV market has grown rapidly over the past few years, and one vehicle that consistently stands out is the Maruti Ertiga CNG. Known for its reliability, practicality, comfort, and superb fuel efficiency, the Ertiga CNG has become a favourite choice for large families, commercial fleet owners, and people looking for affordable long-term running costs. If you are planning to buy an MPV that offers space along with excellent mileage, the Maruti Ertiga CNG is one of the strongest options available today.

In this complete guide, you will learn everything about the Maruti Ertiga CNG—its features, design, engine performance, mileage, safety, comfort, ownership experience, and whether it is worth buying in 2025. This detailed article is written in simple language for easy understanding and includes FAQs at the end to help you make an informed decision.

Introduction to Maruti Ertiga CNG

The Maruti Ertiga CNG is the factory-fitted CNG version of the Ertiga MPV sold by Maruti Suzuki in India. The company introduced the CNG option to offer buyers an economical and eco-friendly alternative to petrol. CNG is already popular because it reduces fuel costs by more than 50%, and when combined with Maruti’s reliable engineering, the result is a vehicle that delivers exceptionally low running expenses.

The Ertiga has always been known for its value-for-money nature, and the Maruti Ertiga CNG continues that legacy. The car is ideal for big families, office commuters, long-distance travellers, and especially people who want a spacious MPV that does not burn a hole in their pocket due to fuel expenses.

Exterior Design and Road Presence

The Maruti Ertiga CNG retains the stylish and modern design of the petrol model. It features a sleek, aerodynamic body that looks premium and sophisticated. The front fascia comes with a bold chrome grille, projector headlamps, and a sculpted bonnet that gives it a confident stance.

From the side, the flowing body lines and large windows give the MPV a clean and elegant appeal. The alloy wheels on higher variants enhance its road presence. At the rear, the signature LED tail lamps and well-designed bumper add to its overall attractiveness.

Although the Maruti Ertiga CNG is not built to look aggressive, it has a practical and mature design that appeals to a wide variety of buyers. It blends functionality with style, making it a family-friendly MPV with a premium touch.

Interior Comfort and Cabin Space

One of the strongest reasons for the popularity of the Maruti Ertiga CNG is its spacious cabin. The MPV offers comfortable seating for seven passengers. The large windows, high roofline, and wide cabin make the interior feel airy and roomy.

Seating Comfort

• The front seats provide good cushioning and support.
• The second row comes with reclining seats for added comfort.
• The third row, although best suited for kids or shorter adults, still offers more space than many other 7-seaters in the segment.

The Maruti Ertiga CNG uses high-quality upholstery and soft-touch elements in the cabin to create a pleasant ambience. The beige interior colour theme adds to the premium feel and makes the cabin look brighter.

Boot Space

The CNG tank occupies some boot space, but Maruti has cleverly designed the placement so that users still get adequate luggage room. For bigger trips, you can fold the third row to create a large cargo area.

Engine, Power, and CNG Performance

The Maruti Ertiga CNG is powered by the proven 1.5-litre K15C DualJet petrol engine that is factory-tuned for CNG compatibility. This engine is known for its smooth performance, low NVH levels, and long-term reliability.

Power Output

• In petrol mode: around 100+ hp
• In CNG mode: around 88–89 hp (approx.)

The slight reduction in power in CNG mode is normal and does not majorly affect the driving experience. The Ertiga CNG still feels adequate for city drives, highway trips, and even fully loaded family journeys.

Driving Experience

When driven in CNG mode, the Maruti Ertiga CNG offers:

• Smooth acceleration
• Linear power delivery
• Low engine noise
• Stable and controlled performance

Thanks to the new-generation K-series technology, the engine maintains consistent power without vibrations. This makes the Maruti Ertiga CNG one of the most refined CNG MPVs on the market.

Mileage of Maruti Ertiga CNG

Mileage is the primary reason many buyers choose the CNG variant. The Maruti Ertiga CNG is widely known for delivering outstanding fuel efficiency.

Real-World CNG Mileage

Users typically report:

• 26–30 km/kg in city conditions
• 28–32 km/kg on highways

This mileage figure makes the Maruti Ertiga CNG extremely economical, especially for people who drive daily or travel long distances. No other 7-seater in this price range offers such impressive running cost benefits.

With fuel prices rising every year, the Ertiga CNG’s superb mileage is one of its biggest advantages.

Running Cost Calculation

Let’s calculate the estimated running cost of the Maruti Ertiga CNG.

Assume:

• CNG price: ₹80 per kg
• Mileage: 28 km/kg

Cost per kilometer:

80 ÷ 28 = ₹2.85 per km

This means every 1,000 km costs only around ₹2,800–3,000. Compared to petrol, this is almost 50–60% cheaper. For commercial owners like cab operators, the savings can be huge in the long term.

Ride Quality and Suspension

The Maruti Ertiga CNG has the same suspension setup as the petrol version. It is tuned for comfort and stability. The suspension absorbs bumps easily, making city drives smooth and comfortable.

Highway stability is decent, and the MPV maintains good control even at higher speeds. The steering is light at low speeds but weighs up slightly as speed increases, giving confidence to the driver.

Features and Technology

Maruti has equipped the Ertiga CNG with several modern features to enhance convenience and comfort.

Key Features

• SmartPlay infotainment system (depending on variant)
• Android Auto & Apple CarPlay
• Steering-mounted controls
• Power windows
• Rear AC vents
• Automatic climate control (higher variants)
• Push-button start (petrol-only higher variants)
• Multi-information display

Although the CNG variant may miss a few high-end features available on top petrol trims, it still provides all essential features needed for daily driving.

Safety Features

Safety is a major priority for buyers, and the Maruti Ertiga CNG includes several important features:

• Dual airbags
• ABS with EBD
• ESP + Hill Hold Assist
• Rear parking sensors
• High-speed alert
• Immobilizer
• Child lock protection

Maruti has also ensured that the CNG kit meets all safety standards, with proper reinforcement and leak-proof technology.

CNG Kit Reliability and Safety

The CNG kit in the Maruti Ertiga CNG is factory-fitted, making it safer and more reliable than aftermarket installations. Factory CNG kits are tested under strict conditions and come with manufacturer warranty support.

Benefits of Factory-Fitted CNG

• Better performance and engine tuning
• Improved safety
• Full warranty protection
• No risk of improper installation
• Long-term engine durability

This makes the Maruti Ertiga CNG a trusted choice for buyers looking for a safe and reliable CNG vehicle.

Ownership Cost and Maintenance

The maintenance of the Maruti Ertiga CNG is extremely affordable. Maruti’s wide service network ensures spare parts availability at reasonable prices.

Typical maintenance includes:

• Engine oil changes
• Air filter replacement
• CNG kit inspection
• General servicing

Most CNG-related components require minimal upkeep, making long-term ownership hassle-free.

Ideal Buyer of Maruti Ertiga CNG

The Maruti Ertiga CNG is perfect for:

• Families needing a spacious 7-seater
• Daily city commuters
• Long-distance travellers
• App-based cab drivers (Uber, Ola)
• Tour operators
• Corporate fleets
• People looking to cut fuel expenses

If your monthly running is above 1,000–1,500 km, the Ertiga CNG becomes an excellent value-for-money choice.

Pros of Maruti Ertiga CNG

• Outstanding mileage
• Very low running cost
• Spacious 7-seater cabin
• Comfortable ride quality
• Maruti resale value
• Reliable engine
• Factory-fitted CNG safety
• Affordable service cost

Cons of Maruti Ertiga CNG

• Slightly reduced boot space due to CNG tank
• Power drop in CNG mode
• Automatic transmission not available in CNG
• Only one variant available

Despite these drawbacks, the Maruti Ertiga CNG remains the top choice for budget-conscious MPV buyers.

Is Maruti Ertiga CNG Worth Buying in 2025?

Yes, the Maruti Ertiga CNG is absolutely worth buying in 2025. With rising fuel prices and increasing demand for eco-friendly vehicles, CNG MPVs are becoming more popular. The Ertiga CNG offers excellent value with its combination of mileage, space, comfort, and reliability.

If you want a 7-seater that is economical and practical for long-term use, the Maruti Ertiga CNG is one of the best cars available in the Indian market.

FAQs on Maruti Ertiga CNG

1. What is the mileage of the Maruti Ertiga CNG?

The real-world mileage is around 26–30 km/kg in the city and 28–32 km/kg on highways.

2. Does the Maruti Ertiga CNG lose power in CNG mode?

Yes, there is a slight drop in power, but it is not major and does not affect normal driving.

3. Is the boot space affected in the Ertiga CNG?

Yes, the CNG tank occupies some space, but you can fold seats to increase luggage capacity.

4. Is factory-fitted CNG safe?

Absolutely. The Maruti Ertiga CNG comes with company-installed CNG equipment that is thoroughly tested for safety.

5. Can Ertiga CNG be used for daily city driving?

Yes, it is perfect for daily commuting due to its low fuel cost and smooth performance.

6. Is the Maruti Ertiga CNG good for commercial use?

Yes. Many cab operators prefer the Ertiga CNG because of its outstanding mileage and low maintenance.

7. Does the Ertiga CNG come with an automatic transmission?

No, it is available only with a manual gearbox.

8. What is the top speed of the Ertiga CNG?

It can comfortably cruise at 90–100 km/h, suitable for highway driving.

9. What is the engine size of the Ertiga CNG?

It uses a 1.5L K15C DualJet petrol engine tuned for CNG compatibility.

10. Is the Maruti Ertiga CNG worth buying?

Yes, it is one of the best 7-seater CNG cars in India, offering excellent running cost benefits.